Spectrum of the Feh-Duf star analyzed in this work. Short dashed vertical lines show the transitions of Ca i 6122.23, Fe i 6137.70, Ba ii 6141.73, Fe i 6151.62, and Fe i 6157.73. The spectral lines are strongly shifted toward the red by about 9.2 Å because of the radial velocity of 448.3 km s-1.
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